Separable Hinge Assembly with Two Component Device

ABSTRACT

A group of assemblies—two housings and a hinge assembly—which particularly enhances the flexibility in use of electronic devices such as computer systems and cell phones. The enhancement derives from the capability of separating the three elements by pairs or one from another for use either individually or as a conjoined entity.

FIELD AND BACKGROUND

What is described here relates to two component electronic devices and to a hinge assembly cooperating with two such components to impart enhanced flexibility in use.

One type of configuration which has been used in the past for electronic devices is known as a “clamshell”. Such configurations appear in cell phones, computer system, and other devices. In a typical clamshell configuration, two housings are provided and joined by a hinge which enables pivotal movement of one housing relative to the other on an axis which extends along one side edge of the housings, at which they are joined. In a second type of configuration which has been used, special hinges which secure two housings together enable both pivotal movement on an axis which extends parallel to side edges of the housings but also enables rotational movement of one housing relative to the other about an axis which is perpendicular to the side edges. Such special hinges, seen for example in certain computer systems which have touch sensitive or responsive displays (so-called “touch screens”), permit a housing containing a display to folded over a second housing for the display to either be protected by the other housing or exposed for touching by a user.

SUMMARY

What is here disclosed is a group of assemblies—two housings and a hinge assembly—which particularly enhances the flexibility in use of electronic devices such as those described. The enhancement derives from the capability of separating the three elements by pairs or one from another for use either individually or as a conjoined entity.

BRIEF DESCRIPTION OF DRAWINGS

Some of the purposes of the technology here disclosed having been stated, others will appear as the description proceeds, when taken in connection with the accompanying drawings, in which:

FIG. 1 is a schematic illustration of an electronic device, particularly a computer system;

FIGS. 2 and 3 are perspective views, from opposite sides, of an illustrative electronic device having two housings and a hinge assembly as described herein;

FIG. 4 is a view similar to FIGS. 2 and 3, showing the two housings and hinge assembly separated one from another; and

FIG. 5 is a further enlarged perspective view showing details of the hinge assembly and one of the two housings.

DETAILED DESCRIPTION OF EMBODIMENTS

While the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which a preferred embodiment of the present structures are shown, it is to be understood at the outset of the description which follows that persons of skill in the appropriate arts may modify the technology here described while still achieving the favorable results of the technology. Accordingly, the description which follows is to be understood as being a broad, teaching disclosure directed to persons of skill in the appropriate arts, and not as limiting upon the scope of protection afforded the technology.

The term “circuit” or “circuitry” may appear in the summary, description, and/or claims. As is well known in the art, the term “circuitry” includes all levels of available integration, e.g., from discrete logic circuits to the highest level of circuit integration such as VLSI, and includes programmable logic components programmed to perform the functions of an embodiment as well as general-purpose or special-purpose processors programmed with instructions to perform those functions.

While various exemplary circuits or circuitry are discussed, FIG. 1 depicts a block diagram of an illustrative exemplary computer system 100. The system 100 may be a desktop computer system, such as one of the ThinkCentre® or ThinkPad® series of personal computers sold by Lenovo (US) Inc. of Morrisville, N.C., or a workstation computer, such as the ThinkStation®, which are sold by Lenovo (US) Inc. of Morrisville, N.C.; however, as apparent from the description herein, a client device, a server or other machine may include other features or only some of the features of the system 100.

The system 100 of FIG. 1 includes a so-called chipset 110 (a group of integrated circuits, or chips, that work together, chipsets) with an architecture that may vary depending on manufacturer (e.g., INTEL®, AMD®, etc.). The architecture of the chipset 110 includes a core and memory control group 120 and an I/O controller hub 150 that exchange information (e.g., data, signals, commands, etc.) via a direct management interface (DMI) 142 or a link controller 144. In FIG. 1, the DMI 142 is a chip-to-chip interface (sometimes referred to as being a link between a “northbridge” and a “southbridge”). The core and memory control group 120 include one or more processors 122 (e.g., single or multi-core) and a memory controller hub 126 that exchange information via a front side bus (FSB) 124; noting that components of the group 120 may be integrated in a chip that supplants the conventional “northbridge” style architecture.

In FIG. 1, the memory controller hub 126 interfaces with memory 140 (e.g., to provide support for a type of RAM that may be referred to as “system memory”). The memory controller hub 126 further includes a LVDS interface 132 for a display device 192 (e.g., a CRT, a flat panel, a projector, etc.). A block 138 includes some technologies that may be supported via the LVDS interface 132 (e.g., serial digital video, HDMI/DVI, display port). The memory controller hub 126 also includes a PCI-express interface (PCI-E) 134 that may support discrete graphics 136.

In FIG. 1, the I/O hub controller 150 includes a SATA interface 151 (e.g., for HDDs, SDDs, etc.), a PCI-E interface 152 (e.g., for wireless connections 182), a USB interface 153 (e.g., for input devices 184 such as keyboard, mice, cameras, phones, storage, etc.), a network interface 154 (e.g., LAN), a GPIO interface 155, a LPC interface 170 (for ASICs 171, a TPM 172, a super I/O 173, a firmware hub 174, BIOS support 175 as well as various types of memory 176 such as ROM 177, Flash 178, and NVRAM 179), a power management interface 161, a clock generator interface 162, an audio interface 163 (e.g., for speakers 194), a TCO interface 164, a system management bus interface 165, and SPI Flash 166, which can include BIOS 168 and boot code 190. The I/O hub controller 150 may include gigabit Ethernet support.

Referring now to FIGS. 2 through 5, the electronic device there shown is a selectively conjoined assembly of three devices. These are a first device housing 210 bearing a display 211 and having a side edge 212; a second device housing 214 bearing a manual input device (shown as a keyboard 215) and having a side edge 216; and a hinge assembly 218 for selectively detachably coupling the first device housing 210 and the second device housing 214. The hinge assembly 218 when coupling the first and second housings together accommodates relative movement therebetween on two orthogonal axes, one of which extends parallel to the side edges 212, 216 and the other extending perpendicularly to that axis. This technology contemplates that movement of the first and second housings 210, 214 about the axis which parallels the side edges 212, 216 accommodates folding of first housing 210 over the second housing 214. This function is similar to the conventional clam shell operation known from notebook computers and certain cell phones. Additionally, the hinge assembly, when the three elements are joined, enables movement of the first and second housings 210, 214 about another axis perpendicular to the side edges to accommodate rotation of the first housing 210 relative to the second housing 214.

The technology here disclosed contemplates that the display 211 will be a touchscreen. Further, the first housing 210 will contain circuitry such as at least some of the elements shown in FIG. 1 (such as a processor and supporting circuit elements) which provide the first device housing 210, display 211, processor and supporting circuit elements with system capabilities independently of the second device.

With that capability, a distinctive characteristic of this technology comes into play. That is the selectively detachable coupling of the elements provided by the hinge assembly 218 and its cooperation with the first and second housings 210, 214. As will be more fully addressed hereinafter, the hinge assembly allows a user to detach the first housing 210 from the hinge assembly 218 and the second housing 214 and use the first housing device as a “slate” computer system. That is, using the touchscreen and the contained circuitry, a user may access computer operating systems, application programs and data stored in or accessible to (for example over a network connection) the device. As used herein, the phrases “system capability” and “system capabilities” refer to such user access and data manipulation.

Referring now to the second housing 214, it is contemplated that a manual input device incorporated there may be a keyboard as illustrated and/or a touch pad which enables cursor manipulation on a display screen. The second housing 214, in addition to the manual input device, may or may not also have system capability by the provision of circuitry such as at least some of the elements shown in FIG. 1 (such as a processor and supporting circuit elements). If such elements and capability are provided, then the device may be used with an external display as a fully functional computer system.

It is to be noted that in FIG. 4, an exploded perspective view, the three elements of this arrangement—two housings and the hinge assembly—are shown separated one from another. What is here described contemplates alternative arrangements. In some implementations, the hinge assembly 218 is selectively separable from each of the two housings. In other implementations, the hinge assembly may be secured in one of the housings for retention there while the housings are separated for use. When conjoined into one super assembly, and with each of the housing elements providing system capability, the processing capability is enhanced above that achieved with either housing element standing alone.

Referring now to FIGS. 4 and 5, details of the interconnections among the three elements can be more clearly seen. In the implementation illustrated as an example (others are contemplated), the conjoined assembly has a pair of mating electrical connectors 220, 221, one of the connectors being incorporated in the hinge assembly 218 and the other of the connectors being incorporated in the first device housing 210. While not visible in FIGS. 4 and 5, a similar pair of connectors are provided between the hinge assembly 218 and the second housing 214 where the three elements are to be separable into individual entities. The connectors 220, 221 enable the passage of electrical signals from components housed within one of the two housings to components housed in the other.

It will be noted that the hinge assembly 218 and the first device housing 210 carry a mating set of projecting portions 222 and receiving recesses 224 which align the hinge assembly and first device housing when those elements are moving into coupled relationship. Further, the characteristics of the mating projections and recesses 222, 224 are preferably such that the elements are both guided into engagement and coupled for transmitting any forces necessarily arising with relative movement between the housings as here described.

The mating assemblies 210, 218 are also provided with a suitable latch mechanism for maintaining the coupled relationships in use. In the illustrated implementation (others are contemplated), the latch mechanism between the first housing 210 and the hinge assembly 218 is provided by a slider 225 with tangs which enter into slots provided in the hinge assembly (FIG. 5). The slider may be selectively moved by a user using a rotatable member 226 (FIG. 3) mounted on the rear face of the first housing 210 and coupled to the slider. A bayonet locking collar on the hinge assembly 218 may engage a socket in the second housing 214 in implementations where the three elements are to be completely selectively separable one from the others as described above.

In the drawings and specifications there has been set forth a preferred embodiment of the technology disclosed and, although specific terms are used, the description thus given uses terminology in a generic and descriptive sense only and not for purposes of limitation. 

1. Apparatus comprising: a first device housing bearing a display and having a side edge; a second device housing bearing a manual input device and having a side edge; and a hinge assembly for selectively detachably coupling said first device housing and said second device housing, said hinge assembly when coupling said first and second device housings together accommodating relative movement therebetween on two orthogonal axes, one of said axes extending parallel to said side edges and the other extending perpendicularly to said one axis; movement of said first and second device housings about said one axis accommodating folding of said first device housing over said second device housing; and movement of said first and second device housings about said other axis accommodating rotation of said first device housing relative to said second device housing.
 2. Apparatus according to claim 1 wherein said hinge assembly is selectively detachably couplable to said first device housing.
 3. Apparatus according to claim 1 wherein said hinge assembly is selectively detachably couplable to said second device housing.
 4. Apparatus according to claim 3 wherein said hinge assembly is selectively detachably couplable to said first device housing.
 5. Apparatus according to claim 1 wherein said display is a touch responsive screen and further comprising a processor and supporting circuit elements housed within said first device housing and providing said first device housing, display, processor and supporting circuit elements with system capabilities independently of said second device housing.
 6. Apparatus according to claim 1 wherein said manual input device is a keyboard and further comprising a processor and supporting circuit elements housed within said second device housing and providing said second device housing, keyboard processor and supporting circuit elements with system capabilities independently of said first device housing.
 7. Apparatus comprising: a first device housing bearing a touch responsive screen and comprising a processor and supporting circuit elements housed within said first device housing and providing said first device housing, screen, processor and supporting circuit elements with system capabilities, said first device housing having a side edge; a second device housing bearing a manual input device and having a side edge; and a hinge assembly for selectively detachably couplable to said first device housing and coupling said first device housing and said second device housing, said hinge assembly when coupling said first and second device housings together accommodating relative movement therebetween on two orthogonal axes, one of said axes extending parallel to said side edges and the other extending perpendicularly to said one axis; movement of said first and second device housings about said one axis accommodating folding of said first device housing over said second device housing; and movement of said first and second device housings about said other axis accommodating rotation of said first device housing relative to said second device housing.
 8. Apparatus according to claim 7 further comprising a pair of mating electrical connectors, one of said connectors being incorporated in said hinge assembly and the other of said connectors being incorporated in said first device housing.
 9. Apparatus according to claim 7 further comprising a latch assembly comprising a first element housed in said first device housing and a second element incorporated in said hinge assembly, said latch securing said first device housing and said hinge assembly in releasable coupled relation.
 10. Apparatus according to claim 7 wherein said hinge assembly and said first device housing carry a mating set of projecting portions and receiving recesses which align said hinge assembly and said first device housing when moving into coupled relationship.
 11. Apparatus comprising: a first computer system housing bearing a display and having a side edge; a second computer system housing bearing a manual input device and having a side edge; and a hinge assembly for selectively detachably coupling said first housing and said second housing, said hinge assembly when coupling said first and second housings together accommodating relative movement therebetween on two orthogonal axes, one of said axes extending parallel to said side edges and the other extending perpendicularly to said one axis; movement of said first and second housings about said one axis accommodating folding of said first device over said second housing; and movement of said first and second housings about said other axis accommodating rotation of said first housing relative to said second housing.
 12. Apparatus according to claim 11 wherein said hinge assembly is selectively detachably couplable to said first housing.
 13. Apparatus according to claim 11 wherein said hinge assembly is selectively detachably couplable to said second housing.
 14. Apparatus according to claim 13 wherein said hinge assembly is selectively detachably couplable to said first housing.
 15. Apparatus according to claim 11 wherein said display is a touch responsive screen and further comprising a processor and supporting circuit elements housed within said first housing and providing said first housing, display, processor and supporting circuit elements with system capabilities independently of said second housing.
 16. Apparatus according to claim 11 wherein said manual input device is a keyboard and further comprising a processor and supporting circuit elements housed within said second housing and providing said second housing, keyboard processor and supporting circuit elements with system capabilities independently of said first housing.
 17. Apparatus according to claim 11 further comprising a pair of mating electrical connectors, one of said connectors being incorporated in said hinge assembly and the other of said connectors being incorporated in said first housing.
 18. Apparatus according to claim 11 further comprising a latch assembly comprising a first element housed in said first housing and a second element incorporated in said hinge assembly, said latch securing said first housing and said hinge assembly in releasable coupled relation.
 19. Apparatus according to claim 11 wherein said hinge assembly and said first housing carry a mating set of projecting portions and receiving recesses which align said hinge assembly and said first housing when moving into coupled relationship.
 20. Apparatus according to claim 19 wherein said mating set of projecting portions and receiving recesses provide for transfer of torque during relative movement of said first and second housings about said one axis of said hinge assembly. 